NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 650
ONVOY, LLC - CA 11
T-MOBILE USA, INC. 4
BANDWIDTH.COM CLEC, LLC - CA 2
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2013-10-31 650-735-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PACIFICA CA
2013-10-31 650-735-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PACIFICA CA
2013-10-30 650-825-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2013-10-30 650-825-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2013-10-21 650-285-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-10-21 650-285-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-10-21 650-285-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-10-21 650-285-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-10-18 650-445-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MATEO CA
2013-10-18 650-445-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2013-10-18 650-960-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2013-10-18 650-965-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2013-10-17 650-479-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2013-10-17 650-489-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNCRL-BLMT CA
2013-10-17 650-720-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2013-10-11 650-419-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LA HONDA CA
2013-10-07 650-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2013-10-04 650-276-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2013-10-04 650-903-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2013-09-25 650-272-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2013-09-25 650-272-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2013-09-25 650-825-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SSNFRNCSCO CA
2013-09-17 650-445-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2013-09-17 650-445-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2013-09-12 650-272-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2013-09-11 650-830-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA
2013-09-11 650-962-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 MT VIEW CA
2013-09-10 650-713-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HALFMOONBY CA
2013-09-09 650-272-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PALO ALTO CA
2013-09-06 650-316-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2013-09-06 650-316-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2013-09-06 650-335-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2013-08-30 650-732-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MILLBRAE CA
2013-08-29 650-445-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SAN MATEO CA
2013-08-28 650-272-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2013-08-28 650-924-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2013-08-19 650-272-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALO ALTO CA
2013-08-16 650-278-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SSNFRNCSCO CA
2013-08-16 650-422-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 PALO ALTO CA
2013-08-16 650-730-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA
2013-08-08 650-993-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SNFC JUNPR CA
2013-08-07 650-422-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PALO ALTO CA
2013-08-06 650-645-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2013-08-06 650-653-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2013-07-22 650-445-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAN MATEO CA
2013-07-18 650-232-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNCRL-BLMT CA
2013-07-18 650-537-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MT VIEW CA
2013-07-17 650-730-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA
2013-07-10 650-732-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MILLBRAE CA
2013-06-26 650-226-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.